SR and sport photography

[sbc]

I did a little test today at Changi beach on the effect of SR and shooting fast moving objects. I know I am supposed to turn off SR when taking sport photos but I just wanted to test it out and see the result for myself.

Verdict:
SR was a hit and miss affair. Most of the photos turn out ok but there are a few where you can tell it is in sharp focus but yet can almost see that there is a little double image.

So the advise is true, turn off the SR if you are shooting the air display this weekend to avoid ruining your photos.

[VSonic06]

What focal length were you shooting at?

[art2d2]

I thought that SR will not effect taking fast action photos ? Most of the time photos are blur or not in focus are caused by slower shutter speed and the focus tracking not able to keep up with the subject, correct me if I'm wrong.

[sbc]

300mm. I believe the long the FL the worst it gets. But I hv not tried it so I am not sure. The problem with SR and moving targets is that sometimes it OVER compensate, hence the ever so slight double image.

[sbc]

300mm. I believe the long the FL the worst it gets. But I hv not tried it so I am not sure. The problem with SR and moving targets is that sometimes it OVER compensate, hence the ever so slight double image.

The photos I posted earlier are taken at 1/350 with SR OFF. They are as sharp as they can be with the misty air over Changi.
The photos I have seen today are still sharp but have a slight double image to them. They are taken at 1/1000. Anyway the sky is cloudy today making the photos dull so I have not bothered to keep them.

[Gengh]

Didn't know SR was affected by the target. I thought it only senses the movements of the camera, and compensates for that? That's why SR can only help with hand shake, but has no effects on motion blur. And also why you turn it off for panning, when you're deliberately moving the camera to keep the target still.

But if it's widely accepted that SR affects sports photography I won't argue with Pentax users' experience either, though I'm just wondering why....

[VSonic06]

I think in-camera IS is more effective at shorter FLs. I don't have any long lenses for Pentax to test but my Olympus E-3's in-camera IS struggles and produce more ghosted images at long FLs eg. 800mm (135 equiv, using 50-200mm + 2.0 TC). I actually get sharper images when I turn off IS using that lens + TC combo even when the shutter speed drops to 1/250-320.

At 800mm, every slightest movement is amplified several times in the view finder...I wonder how the in-camera IS/SR is going to handle that effectively.

[P3ntx]

I shotted alot of sport photos with my 50-200mm SR on, I doubt it would over compensate, infact I think was over shake, that the camera cannot effective compensate ..did you use a mono pod ? I think for sport and mobility shotting monopod serve better.

flickr.com/photo/nc_chia

[fengwei]

When the speed (Tv) is fast enough, or when shooting w/ a tripod, better turn off the SR. Otherwise it might make your photo blurred as what sbc experienced

Actually when using the 2-second mirror lock, the camera will turn off SR automatically ('cause you're using a tripod for 2-second mirror lock, mostly).

[flipfreak]

Originally Posted by sbc I did a little test today at Changi beach on the effect of SR and shooting fast moving objects. I know I am supposed to turn off SR when taking sport photos but I just wanted to test it out and see the result for myself. Verdict: SR was a hit and miss affair. Most of the photos turn out ok but there are a few where you can tell it is in sharp focus but yet can almost see that there is a little double image. So the advise is true, turn off the SR if you are shooting the air display this weekend to avoid ruining your photos.

inbody shake reduction is still not as good as lens based shake reduction when it comes to long telephotos.

[fengwei]

Originally Posted by flipfreak inbody shake reduction is still not as good as lens based shake reduction when it comes to long telephotos.

You might be right. But inbody SR is alot cheaper, isn't it

Besides, I'm pretty happy w/ inbody SR even when using 200 or 300mm lenses

[flipfreak]

Originally Posted by fengwei You might be right. But inbody SR is alot cheaper, isn't it Besides, I'm pretty happy w/ inbody SR even when using 200 or 300mm lenses

yup but at image quality where it matter most, i think price is not a concern.

[VSonic06]

Originally Posted by flipfreak inbody shake reduction is still not as good as lens based shake reduction when it comes to long telephotos.

Even with modern in-lens IS/VR lenses it is still better to turn off IS when there is plenty of light for fast shutter speeds. You're already getting sharp images so why add another unknown variable?

[fengwei]

Originally Posted by flipfreak yup but at image quality where it matter most, i think price is not a concern.

Rich guy


To me, I'd choose the compromise between IQ and price

[flipfreak]

Originally Posted by fengwei Rich guy To me, I'd choose the compromise between IQ and price

haha. ok la. i pay premium for IS and u pay premium for your tripod.

rich man!

[flipfreak]

Originally Posted by VSonic06 Even with modern in-lens IS/VR lenses it is still better to turn off IS when there is plenty of light for fast shutter speeds. You're already getting sharp images so why add another unknown variable?

true. but when u need to use it, then where it is built in will make a difference. right?

[sbc]

Originally Posted by P3ntx I shotted alot of sport photos with my 50-200mm SR on, I doubt it would over compensate, infact I think was over shake, that the camera cannot effective compensate ..did you use a mono pod ? I think for sport and mobility shotting monopod serve better.

You cant use a tripod/monopod when shooting flying objects, when the target can be as low as eye level 1 sec and then zoom up overhead next sec. It is easlier to pivot with your waist rather that the ballhead of the monopod.

A rifle grip would be better, that is if I can still find one. Even then I wont dare to use it after the 9/11 thing. Can be easily mistaken for a shoulder launched anti aircraft missile.

Anyway as shown in the photo, the easy solution is to just turn it off. That shouldn't be too hard to do.

[P3ntx]

How to do mirrow lock for k100d, to minimise movement whentrigger shutter

[fengwei]

Originally Posted by P3ntx How to do mirrow lock for k100d, to minimise movement whentrigger shutter

In normal shooting mode, press the Fn button, then UP (on the direction dial), select 2 sec timer. That will do